JPS6088104U

JPS6088104U - cylinder device

Info

Publication number: JPS6088104U
Application number: JP18083583U
Authority: JP
Inventors: 森下　光政
Original assignee: 日立建機株式会社
Priority date: 1983-11-22
Filing date: 1983-11-22
Publication date: 1985-06-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来技術によるシリンダ装置の縦断面図、第２
図は本考案に係るシリンダ装置の縦断面図である。１・・・シリンダ、２・・田ツド、２Ｂ・・田ツドエン
ド部、２Ｄ・・・ロッドヘッド部、３・・・ピストン、
６・・・ロッドエンドナツト、２１・・・ピストン、２
１Ａ・・・段部、２１　Ｂ・・・ねじ部、２２・・・ピ
ストンシールリング、２３・・・シール押えナツト。Fig. 1 is a vertical sectional view of a cylinder device according to the prior art;
The figure is a longitudinal sectional view of the cylinder device according to the present invention. 1... Cylinder, 2... Field, 2B... Field end, 2D... Rod head, 3... Piston,
6...Rod end nut, 21...Piston, 2
1A...Step part, 21B...Threaded part, 22...Piston seal ring, 23...Seal retaining nut.

Claims

[Scope of utility model registration request]

a cylinder; a rod having one end inserted into the cylinder to become a rod end portion and the other end protruding outside the cylinder to become a rod head; and a rod which is slidably inserted into the cylinder and has a rod head. a piston that is fastened to the rod end portion of the piston via a rod end nut, a stepped portion formed on the rod end nut side of the piston for fitting a piston seal ring, and a step portion that is larger than the outer diameter of the rod end nut. A cylinder comprising a threaded portion having a thread diameter of the same diameter, a piston seal ring fitted to the stepped portion, and a seal holding nut tightened to the threaded portion for fixing the piston seal ring. Device.